There you will see the Season Pass and Add-on DLC’s listed for free for anyone to grab. The Xbox 360 version however must be D/L individually. I have verified this and again thank Chris for the heads up. The original story can be found below.

Fast and Furious Forza Horizon 2 Standalone Expansion:
The next great automotive adventure begins with the Forza Horizon 2 Presents Fast & Furious standalone expansion for Xbox One and Xbox 360! For the first time ever, the Forza experience of thrilling driving and amazing cars is combining with the unstoppable Fast & Furious movie franchise to create an original adventure filled with high-speed automotive action.*